α,β-Unsaturated Acyl Cyanides as New Bis-Electrophiles for Enantioselective Organocatalyzed Formal [3+3]Spiroannulation
作者:Sébastien Goudedranche、Xavier Bugaut、Thierry Constantieux、Damien Bonne、Jean Rodriguez
DOI:10.1002/chem.201303613
日期:2014.1.7
α,β‐Unsaturated acyl cyanides are key bis‐electrophile substrates for successful domino enantioselective organocatalyzed Michael‐intramolecular acylation domino sequences. This new reactivity has been applied to the synthesis of enantioenriched azaspiro[4,5]decanone ring systems by a formal [3+3]spiroannulation, constituting a rare example of synthesis of glutarimides in an optically active form.
α,β-不饱和酰基氰是成功的多米诺对映选择性有机催化的迈克尔-分子内酰化多米诺序列的关键双亲电子底物。这种新的反应性已通过正式的[3 + 3]螺环化反应用于合成对映体富集的氮杂螺环[4,5]癸癸酮环系,构成了光学活性形式戊二酰亚胺合成的罕见实例。